package com.cqz.unit1.t17;

public class MyThread extends Thread {
    @Override
    public void run() {
        long beginTime=System.currentTimeMillis();
        int count=0;
        for (int i=0;i<50000000;i++){
            Thread.yield();
            count=count+1;
        }
        long endTime=System.currentTimeMillis();
        System.out.println(endTime-beginTime);
    }
}
